Q.How can I grow Neomarica caerulea from seeds?
I have a few Neomarica caerulea seeds and don’t know when or how to start the seeds. Could you help me, please? Thanks!

Research shows that starting the seeds right away after harvesting from the plants is the best.
Set the seeds in a good quality potting mix and keep moist and warm.
I was not able to find a accurate time frame for germination.
Here are some links with growing information.
https://www.gardeningknowhow.com/ornamental/bulbs/walking-iris/walking-iris-plants.htm
https://www.gardeningknowhow.com/ornamental/bulbs/walking-iris/transplanting-walking-iris.htm